JP5577992B2 - Battery box for electric motorcycle - Google Patents

Description

  The present invention relates to a battery box of an electric motorcycle that travels using electric power of a battery as a power source.

  Conventional motorcycles mainly use an engine as a power source. However, from the viewpoint of reducing the environmental load, a motorcycle (hereinafter referred to as “motorcycle”) that runs using electric power supplied from an in-vehicle battery as a power source. Abbreviated as “electric motorcycle”). As such an electric two-wheeled vehicle, for example, an electric two-wheeled vehicle in which a battery is detachably stored in a battery box provided below a driver's seat and electric power supplied from the battery is used as a power source is known (patent) Reference 1).

  The battery described in the above prior art is formed in a substantially rectangular parallelepiped shape, and a connection terminal is provided at the distal end in the insertion direction, and the corresponding connection terminal on the battery box side is disposed at the bottom of the battery box. In addition, a battery box is formed in accordance with the outer shape of the battery so that the battery can be held without any gaps. By adopting such a configuration, contact vibration between the battery-side connection terminal and the battery box-side connection terminal is caused by running vibration from the road surface, or foreign matter or water enters the battery box and is provided in the battery. It is possible to suppress the occurrence of a short circuit at the discharge terminal portion.

JP 2004-74907 A

  However, even if the battery box is held so as to wrap the battery without any gaps as described above, it is difficult to completely prevent foreign matter and water from entering the battery box. Water tends to accumulate. For this reason, when the connection terminal on the battery box side is arranged at the bottom of the battery box, there is a drawback that the foreign matter and water adhere to the connection terminals and cause a contact failure between the connection terminals.

  In addition, if the gap between the battery and the battery box is narrowed as described above, the battery may be accidentally inserted into the battery box with the operator's hand or finger placed on the opening edge of the battery box when replacing the battery. If the battery is inserted or dropped, a hand or a finger may be caught between the opening edge of the battery box and the battery, and the operator may be injured. In particular, when the space below the driver's seat is used as a battery box as in Patent Document 1, the height of the opening edge of the battery box is just high enough for the operator to place his / her hand. The possibility of pinching hands and fingers increases. Therefore, some countermeasure is necessary.

  In view of the above circumstances, an object of the present invention is to prevent an operator from being injured by putting a hand or a finger between a battery and a battery box.

The present invention relates to a battery box for an electric motorcycle that travels using electric power from a battery as a power source, and includes an upward opening and a battery storage section in which the battery can be inserted and removed, along an opening edge of the battery storage section. An elastically deformable cushion member, and the battery has a vertically long shape, and a protrusion having a battery side terminal is provided on the peripheral surface of the battery, and corresponds to the protrusion. The battery storage portion is provided with a stepped recess, the battery storage portion side terminal connectable to the battery side terminal is provided in the recess, and the cushion is provided along the opening edge corresponding to the recess. A member is provided, and an upper end surface of the battery storage portion is cut out, and the cushion member is disposed in the cutout portion .

By adopting such a configuration, even if an operator has caught a hand or finger between the battery and the cushion member provided along the opening edge of the battery box, the cushion member is elastically deformed. Since the impact is alleviated, it is possible to prevent the operator from injuring the hand or the finger. In addition, even if foreign matter or water collects at the bottom of the battery storage unit, it is possible to prevent the foreign matter or water from adhering to the battery side terminal or the battery storage unit side terminal. Can be prevented. Moreover, the lower end part of a cushion member can be set to a low position. Therefore, if the position of the upper end portion of the cushion member is the same, the vertical width of the cushion member can be increased, and as a result, the upper end portion and the opening edge portion of the cushion member can be moved away. Therefore, it is possible to prevent the operator from sandwiching a hand or a finger between the opening edge portion and the battery, and it is possible to further improve safety.

Further, the upper end surface of the battery storage portion may be cut out to the vicinity of the bottom surface of the recess.

  According to the battery box of the electric motorcycle of the present invention, it is possible to prevent an operator from being injured by putting a hand or a finger between the battery and the battery box.

1 is a left side view showing an electric motorcycle according to an embodiment of the present invention. In the electric motorcycle according to one embodiment of the present invention, it is a perspective view from the upper left showing the vicinity of the battery box. 1 is a perspective view from the upper left side showing a battery box in an electric motorcycle according to an embodiment of the present invention. 1 is a plan view showing a front portion of a battery box in an electric motorcycle according to an embodiment of the present invention. In the electric motorcycle according to one embodiment of the present invention, it is a perspective view from the lower left showing a cushion member. (A) is a bottom view which shows a cushion member in the electric motorcycle which concerns on one Embodiment of this invention, (b) is AA sectional drawing of (a), (c) is (a It is BB sectional drawing of). (A) is explanatory drawing which shows the state in the middle of being inserted in a front storage part in the electric motorcycle which concerns on one Embodiment of this invention, (b) is the battery inserted in the front storage part. It is explanatory drawing which shows a state.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. In the present embodiment, a case where the present invention is applied to a small scooter type electric motorcycle 1 (hereinafter, abbreviated as “electric motorcycle 1”) will be described.

  First, the overall configuration of an electric motorcycle 1 according to an embodiment of the present invention will be described with reference to FIG. In FIG. 1, the rear portion of the electric motorcycle 1 is shown in a perspective view. Hereinafter, the up and down, left and right, and front and rear directions indicate directions viewed from the driver who rides on the electric motorcycle 1.

  The electric motorcycle 1 is provided with a vehicle body frame 2 that constitutes a framework of the vehicle body. The vehicle body frame 2 has the same configuration as the vehicle body frame 2 provided in a general scooter type motorcycle equipped with a gasoline engine, and includes a head pipe 3 disposed at the upper front end of the vehicle body frame 2, A down tube 4 extending rearward and downward and a rear frame 5 extending rearward and upward from the rear end of the down tube 4 are provided.

  A front fork 6 is supported on the head pipe 3 so as to be rotatable left and right, and a front wheel 7 is pivotally supported at the lower end of the front fork 6. A steering shaft 8 is attached to the head pipe 3, and a handle bar 11 is fixed to the upper end of the steering shaft 8. A rearview mirror 12 is provided above the handle bar 11.

  The periphery of the head pipe 3 and the down tube 4 is covered with a front cover 13 from the front and covered with a leg shield 14 from the rear. A box-shaped front basket 15 having an upper surface opened from the upper part to the lower part is fixed to the front surface of the front cover 13, and a winding device 17 is provided on the rear upper side of the front basket 15. A sheet-like lid member (not shown) that can cover the upper surface of the front basket 15 is wound around the winding device 17. A headlight 18 is attached between the lower surface of the front basket 15 and the lower front portion of the front cover 13.

  A front end portion of the power unit 20 is supported at the rear lower portion of the down tube 4 so as to be swingable in the vertical direction, and a stand device 21 is supported at the front lower portion of the power unit 20. A rear wheel 22 is pivotally supported on the rear end of the power unit 20 and a motor 23 for driving the rear wheel 22 is fixed.

  The rear frame 5 is covered with a frame cover 24, and a low-floored footboard 25 is provided between the frame cover 24 and the leg shield 14 so that a driver can place his / her feet when riding. The board 25 accommodates an inverter 26. A rear fender 27 is provided at the rear end of the frame cover 24 so as to cover the upper surface of the rear wheel 22. A driver seat 28 is provided in front of the rear fender 27 and a battery box 30 is provided in front of the rear fender 27 below the driver seat 28.

  Next, the structure of the battery box 30 is demonstrated mainly using FIGS.

  The battery box 30 is opened upward and has a box shape. The upper edge portion 31 of the battery box 30 is inclined rearward and upward, and an annular protrusion 29 is provided on the upper edge portion 31. A seat hinge 32 is provided in front of and below the front end portion of the upper edge portion 31 of the battery box 30, and the driver seat 28 is attached to the upper end of the battery box 30 by attaching the front end portion of the driver seat 28 to the seat hinge 32. It is supported so that it can be opened and closed.

  Inside the battery box 30, there are provided a front storage part 34 as a battery storage part in which the battery 33 is detachably stored, and a rear storage part 36 in which a battery (spare) 35 is detachably stored. The front storage part 34 and the rear storage part 36 are connected via the upper space 38 of the battery box 30.

  The battery 33 has a substantially rectangular parallelepiped shape that is long in the vertical direction. A projecting portion 40 projects from the upper portion of the front surface of the battery 33 toward the front, and a discharge terminal as a battery side terminal is disposed at the lower end of the projecting portion 40. 41 is provided internally (see FIG. 7). A foldable grip 42 is attached to the upper end of the battery 33.

  As shown in FIGS. 3 and 4, the front storage part 34 includes an upward opening with an opening edge 37 provided at the upper end. At the upper end portion of the front storage portion 34, a horizontally-long rectangular stepped recess 43 is provided at a position corresponding to the protrusion 40 of the battery 33 so as to protrude forward, and corresponds to the recess 43. The opening edge 37 to be projected protrudes in a U shape toward the front. Hereinafter, the portion protruding in the U shape is referred to as a protrusion 44 of the opening edge 37. On the bottom surface 45 of the recess 43, a horizontally long rectangular communication hole 46 is formed in a vertical direction at a position corresponding to the discharge terminal 41 of the battery 33, and a circular through hole 47 is formed in the vertical direction on the left side of the communication hole 46. (See FIG. 4).

  The front portion of the upper end surface 48 of the front storage portion 34 (the surface extending from the opening edge portion 37 of the front storage portion 34 to the periphery) is cut out to the vicinity of the bottom surface 45 of the recess 43, thereby the cutout portion 50. Is formed. The notch 50 is provided at a position slightly higher than the bottom surface 45 of the recess 43 so as to surround the front side, the right side, and the left front side of the recess 43. In the cutout portion 50, circular fitting holes 51 are formed in the vertical direction at the center portion in the left-right direction and the left and right ends in front of the recess 43. The fitting hole 51 at the center in the left-right direction is located slightly forward of the fitting holes 51 at both left and right ends.

  As shown in FIG. 4, a left rib 53 that is substantially T-shaped in plan view and is supported by the left protrusion 52 is provided in the notch 50 at the rear left of the recess 43. A support plate 55 is provided on the right side of the rear portion of the recess 43 so as to be fixed to the right protrusion 54. The support plate 55 is formed in a U-shape in plan view by an inner plate 56 and an outer plate 57 provided in the front-rear direction and a connecting plate 58 provided in the left-right direction. A right rib 60 having a T-shape in plan view is projected. The right rib 60 is provided in the notch 50 on the right side of the front of the recess 43.

  A rubber cushion member 61 that is elastically deformable is erected on the notch 50 along the protrusion 44 of the opening edge 37. The cushion member 61 has a U-shape in a plan view, and as shown in FIGS. 5 and 6, both left and right short sides 62 provided in the front-rear direction, and both left and right short sides provided in the left-right direction. And a long side portion 63 that connects the front end portions of the portion 62.

  A T-shaped left fitting groove 64 in a bottom view is provided at the rear portion of the left short side portion 62 at a position corresponding to the left rib 53 provided in the cutout portion 50 of the front storage portion 34. A connection projection 65 is provided at the upper rear end of the right short side portion 62 toward the upper rear side, and the rear lower portion of the connection projection 65 is engageable with the right projection 54 of the front storage portion 34. An engagement groove 66 is provided. In the right short side portion 62, a right fitting groove 67 having a T-shape in a bottom view from the rear portion of the bottom surface to the upper end of the engagement groove 66 is provided in the notch portion 50 of the front storage portion 34. And are provided at corresponding positions.

  A semi-conical taper portion 68 having a diameter increasing downward is provided at the center in the left-right direction on the front surface of the long side portion 63, and accordingly, the center portion in the left-right direction on the bottom surface of the long side portion 63. A bay portion 70 is formed at the front.

  Protrusions 71 are provided at positions corresponding to the respective fitting holes 51 provided in the notch portion 50 of the front storage portion 34 at the center portion in the left-right direction and both left and right end portions of the bottom surface of the long side portion 63. The protrusions 71 at the left and right end portions are provided at the substantially center in the front-rear direction of the bottom surface of the long side portion 63, whereas the protrusion 71 at the center portion in the left-right direction is a position biased toward the bay portion 70 side, that is, the front side. Is provided. Therefore, the center part of each protrusion 71 is not arrange | positioned on the same straight line, but is arrange | positioned on the polygonal broken line (refer the dashed-two dotted line of FIG. 6). Each protrusion 71 includes a columnar base end portion 72 connected to the bottom surface of the long side portion 63, a wedge-shaped (downward conical) collar portion 73 provided below the base end portion 72, and a collar portion 73. , And a tip portion 74 provided vertically long (see FIG. 6B).

  The cushion member 61 is provided with a hollow portion 75a from the front of the left fitting groove 64 to the rear of the left end projection 71, and is hollow from the left of the left end projection 71 to the left of the left central projection 71. A portion 75 b is provided, and a hollow portion 75 c is provided from the right side of the protrusion 71 at the center in the left-right direction to the front of the right fitting groove 67. The hollow portions 75a to 75c are provided from the bottom surface to the upper end portion of the cushion member 61, and the lower end is opened (see FIG. 6C).

  As best shown in FIG. 3, a controller 77 is located directly below the cushion member 61 along the front surface of the front wall 76 of the battery box 30 (a wall covering the front of the internal space of the front storage portion 34). A power supply terminal 78 provided as a battery storage unit side terminal provided at the upper end of the controller 77 protrudes into the recess 43 through the communication hole 46. The power supply terminal 78 is connected to the discharge terminal 41 of the battery 33 so that the battery 33 and the controller 77 can be electrically connected. A main harness 80 extends downward from the lower end of the controller 77 (see FIGS. 7A and 7B), and one end of an auxiliary harness (not shown) is fixed to the main harness 80. Yes.

  The battery (spare) 35 is stored in the rear storage portion 36 in the reverse direction of the battery 33. Since the shape of the battery (spare) 35 is the same as that of the battery 33, the description is omitted. A concave groove 82 is recessed in the rear storage portion 36 at a position corresponding to the protruding portion 81 provided in the battery (spare) 35.

  A circular wiring insertion hole 84 is formed in the upper portion of the rear wall 83 of the battery box 30 (the wall body covering the rear storage portion 36 and the rear portion of the upper space 38). A rubber grommet 85 is detachably provided in the wiring insertion hole 84, and a failure diagnosis coupler 86 to which the other end of the harness is fixed is fitted and supported on the grommet 85.

  In the structure configured as described above, the right and left fitting grooves 64 and 67 of the cushion member 61 are formed in the left and right ribs 53 and 60 of the cutout portion 50 in order to assemble the cushion member 61 into the cutout portion 50 of the front storage portion 34. The top end 74 of each projection 71 of the cushion member 61 is inserted through the fitting hole 51 of the cutout portion 50 while being fitted from above, and the front end 74 is pulled downward by hand, radio pliers or the like. When the tip portion 74 is pulled downward in this manner, the flange 73 of each projection 71 passes through the fitting hole 51 while contracting and is disposed below the fitting hole 51 (see FIG. 6B). Thereby, the cushion member 61 is erected along the protrusion 44 of the opening edge portion 37, and the assembly of the cushion member 61 is completed.

  In the present embodiment, as described above, since the vertically long tip 74 is provided below the wedge-shaped flange 73 provided on the protrusion 71, the cushion member is provided in the notch 50 of the front storage portion 34 as described above. When assembling 61, it becomes easy to pull the protrusion 71 downward, and the workability of the assembling work can be improved. Further, since the collar portion 73 has a wedge shape (downward conical shape), the collar portion 73 can easily pass through the fitting hole 51, and also in this respect, the workability of the assembling work can be improved.

  Further, since the position where the cushion member 61 is arranged is close to the seat hinge 32 and directly above the controller 77, the arrangement space of the cushion member 61 is very small. On the other hand, it is necessary to prevent the cushion member 61 from falling off due to vibration during traveling or contact between the cushion member 61 and the battery 33 when the battery 33 is attached / detached. The front housing part 34 must be firmly fixed to the notch part 50.

  Therefore, in the present embodiment, the left and right fitting grooves 64 and 67 of the cushion member 61 are fitted to the left and right ribs 53 and 60 provided in the notch 50 of the front storage portion 34, thereby The rear part of the bottom surface of the short side part 62 is firmly fixed to the notch part 50 of the front storage part 34. Further, by fitting the projection 71 of the cushion member 61 having the wedge-shaped flange portion 73 into the fitting hole 51 provided in the notch portion 50 of the front storage portion 34, the long side portion 63 of the cushion member 61. The center part in the left-right direction and the left and right end parts of the bottom surface of the base plate are firmly fixed to the cutout part 50 of the front storage part 34. As described above, both the left and right short side portions 62 and the long side portion 63 can be firmly fixed to the cutout portion 50 of the front storage portion 34 in a limited space. It is possible to increase the fixing strength of the cushion member 61 with respect to the notch 50.

  Further, since the protruding portion 70 is formed on the bottom surface of the cushion member 61 by providing the taper portion 68 at the central portion in the left-right direction on the front surface of the cushion member 61, the bottom area of the cushion member 61 increases. Thus, the contact area between the bottom surface of the cushion member 61 and the notch 50 can be increased, and the cushion member 61 can be made difficult to fall. Further, as described above, since the protrusion 71 is arranged not on a straight line but on a polygonal broken line in the long side portion 63 of the cushion member 61, the cushion member 61 is not easily tilted even in this respect. Can do.

  Next, in order to insert the battery 33 into the front storage part 34 to which the cushion member 61 is assembled as described above, the battery 33 is placed in the internal space of the front storage part 34 as shown in FIG. As shown in FIG. 7B, the discharge terminal 41 provided on the protruding portion 40 of the battery 33 is connected to the power supply terminal 78 of the controller 77 protruding into the concave portion 43 of the front storage portion 34. Connecting. As a result, power can be supplied from the battery 33 to the controller 77, and the electric motorcycle 1 can be driven using the power of the battery 33 as a power source.

  In the present embodiment, as described above, elastic deformation is possible along a location where the hand or finger may be pinched between the opening edge 37 of the front storage portion 34 and the battery 33 (the protrusion 44 of the opening edge 37). A cushion member 61 is arranged. By adopting such a configuration, when the battery 33 is inserted into the front storage part 34, an operator can connect between the cushion member 61 provided along the opening edge 37 of the front storage part 34 and the battery 33. Even if a hand or a finger is sandwiched, the cushion member 61 is elastically deformed to relieve the impact, so that the operator can be prevented from being injured. Further, by arranging the cushion member 61 along the protrusion 44 of the opening edge 37 of the front storage part 34, it is possible to prevent foreign matter and water from entering the front storage part 34 from the opening edge 37. It becomes possible.

  In addition, since the cushion member 61 is provided with hollow portions 75a to 75c whose lower ends are opened, when the operator pinches his / her hand or finger, the cushion member 61 is easily elastically deformed and the operator can Injuries can be prevented, and at other times, the cushion member 61 can retain its shape and prevent foreign matter and water from entering the front storage portion 34 from the opening edge portion 37. .

  In addition, a discharge terminal 41 is provided at the lower end of the projecting portion 40 projecting from the top of the front surface of the battery 33, and a power supply terminal 78 that can be connected to the discharge terminal 41 projects into the stepped recess 43 of the front storage portion 34. It is installed. Therefore, even if foreign matter or water accumulates at the bottom of the internal space of the front storage portion 34, it is possible to suppress the foreign matter or water from adhering to the discharge terminal 41 or the power supply terminal 78, and contact between the terminals. Defects can be prevented.

  In this embodiment, since the cushion member 61 is disposed in the recess 43 provided in the upper end surface 48 of the front storage portion 34, the cushion member 61 is provided on the upper end surface 48 of the front storage portion 34 not provided with the recess 43. Compared with the case where it arrange | positions, the lower end part of the cushion member 61 can be set to a low position. Therefore, if the position of the upper end portion of the cushion member 61 is the same, the vertical width of the cushion member can be increased, and as a result, the upper end portion of the cushion member 61 and the opening edge portion 37 can be moved away. Therefore, it is possible to prevent the operator from sandwiching a hand or a finger between the opening edge portion 37 and the battery 35, and it becomes possible to further improve safety.

  In the present embodiment, the case in which the protruding portion 40 is provided on the upper portion of the front surface of the battery 33 has been described. However, in another different embodiment, the protruding portion 40 is provided on the lower portion or central portion of the front surface of the battery 33. It is also possible. That is, if the protruding portion 40 is provided at a portion other than the lower end portion of the front surface of the battery 33, the corresponding concave portion 43 of the front storage portion 34 is stepped, and the above-described contact failure prevention effect can be enhanced. . In the present embodiment, the case where the protruding portion 40 is provided on the front surface of the peripheral surface of the battery 33 has been described. However, in another different embodiment, the protruding portion is provided on the rear surface or both side surfaces of the peripheral surface of the battery 33. 40 may be provided in a protruding manner.

  In the present embodiment, the discharge terminal 41 is accommodated in the protruding portion 40 of the battery 33. However, in other different embodiments, other components such as a circuit of the battery 33 may be accommodated. In the present embodiment, T-shaped left and right ribs 53 and 60 are provided in the front storage portion 34, and T-shaped left and right fitting grooves 64 and 67 into which the left and right ribs 53 and 60 can be fitted are provided in the cushion member 61. However, in other different embodiments, conversely, the cushion member 61 is provided with T-shaped left and right ribs 53 and 60, and the left and right ribs 53 and 60 can be fitted with the T-shaped left and right fittings. The grooves 64 and 67 may be provided in the front storage portion 34.

  Further, since the front storage portion 34 has a short distance from the opening edge portion 37 to the upper edge portion 31 of the battery box 30, it is easy to place a hand or a finger on the opening edge portion 37. On the other hand, since the rear storage part 36 has a long distance from the opening edge part to the upper edge part 31 of the battery box 30 and has a height difference, it is difficult to place a hand or a finger on the opening edge part. In consideration of such circumstances, the cushion member 61 is provided only in the front storage portion 34 in the present embodiment. On the other hand, in other different embodiments, the cushion member 61 may be provided not only in the front storage portion 34 but also in the rear storage portion 36. Further, in the present embodiment, the cushion member 61 is provided only in the portion of the opening edge portion 37 of the front storage portion 34 where it is easy to place a hand or a finger. However, in other different embodiments, the opening edge of the front storage portion 34 is provided. The cushion member 61 may be provided so as to surround the entire circumference of the portion 37.

  In the present embodiment, the tapered portion 68 that expands downward is provided only in the central portion of the front surface of the cushion member 61 in the left-right direction. However, in the other different embodiments, the entire front surface of the cushion member 61 is directed downward. You may form in the taper shape which expands in diameter. In this case, it is possible to further increase the bottom area of the cushion member 61, and accordingly, it is possible to further increase the contact area between the bottom surface of the cushion member 61 and the cutout portion 50 of the front storage portion 34. Thus, it is possible to more effectively prevent the cushion member 61 from falling down.

  In the present embodiment, the rubber cushion member 61 is used. However, the material of the cushion member 61 is not limited to this, and for example, a cushion member 61 formed of a resin material that can be elastically deformed may be used. In the present embodiment, the three protrusions 71 are arranged on the polygonal line, but in other different embodiments, four or more protrusions 71 may be arranged in a zigzag shape. The fall of the cushion member 61 can be effectively prevented.

DESCRIPTION OF SYMBOLS 1 Electric motorcycle 30 Battery box 33 Battery 34 Front storage part (battery storage part)
37 Opening edge 40 Protruding part 41 Discharge terminal (battery side terminal)
43 Concave portion 48 Upper end surface 50 Notch portion 61 Cushion member 78 Power supply terminal (battery housing side terminal)

Claims (2)

A battery box for an electric motorcycle that travels using the power of the battery as a power source,
A battery housing part having an upward opening and capable of inserting and removing the battery; and an elastically deformable cushion member provided along an opening edge of the battery housing part ,
The battery has a long shape up and down, and a protrusion provided with a battery side terminal is provided on the peripheral surface of the battery,
A stepped recess is provided in the battery storage corresponding to the protrusion, a battery storage side terminal connectable to the battery side terminal is provided in the recess, and the opening edge corresponding to the recess The cushion member is provided along
A battery box for an electric motorcycle , wherein an upper end surface of the battery storage portion is cut out, and the cushion member is disposed in the cutout portion . Electric motorcycle battery box according to claim 1, wherein the rather missing cut to the vicinity of the bottom surface of the upper end surface of the battery housing portion and the recess.